WO2024105463A1 - A guiding device for guiding an impact head and a homogenizing valve comprising said guiding device - Google Patents
A guiding device for guiding an impact head and a homogenizing valve comprising said guiding device Download PDFInfo
- Publication number
- WO2024105463A1 WO2024105463A1 PCT/IB2023/058407 IB2023058407W WO2024105463A1 WO 2024105463 A1 WO2024105463 A1 WO 2024105463A1 IB 2023058407 W IB2023058407 W IB 2023058407W WO 2024105463 A1 WO2024105463 A1 WO 2024105463A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- guiding device
- solid body
- impact head
- core
- internal cavity
- Prior art date
Links
- 239000007787 solid Substances 0.000 claims abstract description 45
- 239000012530 fluid Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 6
- 229910052582 BN Inorganic materials 0.000 claims description 4
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 4
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 4
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000000265 homogenisation Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 230000006800 cellular catabolic process Effects 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/44—Mixers in which the components are pressed through slits
- B01F25/442—Mixers in which the components are pressed through slits characterised by the relative position of the surfaces during operation
- B01F25/4422—Mixers in which the components are pressed through slits characterised by the relative position of the surfaces during operation the surfaces being maintained in a fixed but adjustable position, spaced from each other, therefore allowing the slit spacing to be varied
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/44—Mixers in which the components are pressed through slits
- B01F25/441—Mixers in which the components are pressed through slits characterised by the configuration of the surfaces forming the slits
- B01F25/4412—Mixers in which the components are pressed through slits characterised by the configuration of the surfaces forming the slits the slits being formed between opposed planar surfaces, e.g. pushed again each other by springs
Definitions
- the present invention relates to a guiding device for guiding an impact head and a homogenizing valve comprising said guiding device.
- the invention proposed here is used in the food industry, in particular in the dairy sector, or in the chemical, pharmaceutical or cosmetic industry.
- the invention can also be used in manufacturing areas where homogenization is a step of the production process.
- carbon-based nanostructured materials such as graphene and carbon nanotubes or cellular breakdown of yeasts, algae, or microorganisms for the production of intracellular material.
- apparatus for homogenising fluids crush the particles, reducing their dimensions to a minimum and make the dimensions of the particles uniform, thus reducing variation of distribution of the dimensions of the particles.
- Said homogenising apparatus also in the different embodiments so far known, comprise a high-pressure pump and a homogenising valve.
- the homogenising valve comprises a first chamber receiving the fluid at high pressure from the pump delivery and a second chamber capable of supplying outgoing homogenised fluid at low pressure.
- the homogenising action is obtained by forcing the fluid to pass through an interspace or gap with reduced dimensions afforded between the first and the second chamber.
- the gap is defined by a passage head integrally joined to the valve body and by an impact head axially mobile with respect to the passage head.
- the dimension of the gap is controlled by acting directly on the pusher as a function of the valve flow rate and pressure operating values.
- the fluid loses pressure by passing through the gap and is simultaneously accelerated, thus allowing fragmentation of the particles in suspension.
- the annular configuration of the two chambers allows the fluid at high pressure to press on an annular surface of the impact head, thus allowing operation with a gap of reduced dimensions with the same energy applied.
- One limit of the solution just described lies in the form and position of the pusher acting on the impact head.
- the pusher consists in a shaft integrally fixed to the impact head and located in the upper part of the homogenizing valve.
- the object of the present invention is to provide a guiding device for guiding an impact head and a homogenizing valve, which overcome the problems of the prior art cited above.
- the object of the present invention is to propose a guiding device for guiding an impact head in which the impact head may BE actuated in a more accurate and reliable way, avoiding or at least decreasing the risks of mechanical misalignments.
- Another object of the present invention is to propose a guiding device for guiding an impact head wherein the useful lifetime of the impact head is increased over the prior art solutions.
- a guiding device for guiding an impact head of a homogenizing valve comprising:
- a solid body having a cylindrical symmetry and having an internal cavity passing through the solid body, said internal cavity developing according to an axis of symmetry of the solid body, said solid body having a plurality of passages that are obtained for allowing the passage of a fluid;
- the solid body is made of a single piece.
- the solid body comprises a case and a core that are integrally connected, the internal cavity being delimited by the core.
- the passages of the plurality of passages are through-holes obtained between the case and the core.
- the through-holes are separated by connecting elements that connect the core to the case.
- the core has a substantially hollow cylindrical shape.
- the core has an annular protrusion at one end so as to retain the sleeve.
- annular protrusion projects inward towards the internal cavity.
- the through-holes are arranged around the core.
- each of said through-holes has an arcuated development.
- the passages of said plurality of passages are grooves obtained in the solid body.
- the solid body comprises a first element and a second element that are integrally connected and coaxial.
- the second element originates from the first element.
- the grooves are obtained in the second element.
- the second element has a cylindrical symmetry.
- the grooves are obtained on an external lateral surface of the second element.
- the guiding device further comprises a stop element operatively active on the sleeve for maintaining it fitted within the internal cavity of the solid body.
- the second element has an internal annular groove for receiving the stop element.
- the stop element is a seeger.
- a homogenizing valve comprising:
- valve body defining a through-hole having axial development with respect to the valve body
- the impact head is made of one of the following materials: tungsten carbide, ceramic, boron nitride, silicon carbide, silicon nitride.
- FIG. 1 illustrates a guiding device for guiding an impact head, according to a first embodiment of the invention, in three different exploded views;
- figure 4 illustrates a homogenizing valve comprising the guiding device of figures 1 -3, in a longitudinal cross-sectional view;
- FIG. 5 is an enlarged view of the homogenizing valve of figure 4 in the area of the guiding device;
- FIG. 6 and 7 illustrate a guiding device for guiding an impact head, according to a second embodiment of the invention, in two different exploded views;
- FIG. 8 illustrates a cross-sectional view of the guiding device according to the second embodiment, inserted in a homogenizing valve.
- reference numeral 1 denotes a guiding device for guiding an impact head 100 of a homogenizing valve 200.
- an impact head 100 is also called striking head.
- the guiding device 1 comprises a solid body 2 having a cylindrical symmetry and having an internal cavity 3 passing through the solid body 2.
- the internal cavity 3 develops according to an axis of symmetry A-A of the solid body 2.
- the internal cavity 3 is coaxial with the solid body 2.
- the solid body 2 is made of a single piece.
- the solid body 2 is made of steel.
- the solid body 2 is made of a metal material.
- the guiding device 1 further comprises a sleeve 9 fitted within the internal cavity 3 of the solid body 2 for receiving the impact head 100.
- the sleeve 9 is made by a plastic material.
- the sleeve 9 is made by PTFE.
- the solid body 2 has a plurality of passages 4 that are obtained for allowing the passage of a fluid.
- the solid body 2 comprises a case 5 and a core 6 located inside the case
- the case 5 and the core 6 are integrally connected.
- the case 5 and the core 6 are connected by a plurality of connecting elements 7.
- the internal cavity 3 is delimited by the core 6.
- the passages 4 are through-holes 40 obtained between the case 5 and the core 6.
- the through-holes 40 are separated by the connecting elements 7 that connect the case 5 to the core 6.
- the core 6 has a substantially hollow cylindrical shape.
- the core 6 has an annular protrusion 10 at one end so as to retain the sleeve 9.
- the annular protrusion 10 projects inward towards the hollow of the core
- each through-hole 40 is arranged around the core 6.
- each through-hole 40 has an arcuated development.
- the through-holes 40 are four and are distributed circumferentially so as to be arranged around the core 6.
- the through-holes 40 have all the same dimensions and shape and are equally spaced.
- the case 5 comprises a first portion 15 having a first external diameter and a second portion 25 having a second external diameter that is lower than the first external diameter.
- the first portion 15 and the second portion 25 have a substantially hollow cylindrical shape.
- the second portion 25 is integral and coaxial with the first portion 15 according to the axis of symmetry A-A. According to an aspect of the invention, the second portion 25 originates from the first portion 15.
- the solid body 2 comprises an external surface 8 having an annular step 8a that externally connects the first portion 15 to the second portion 25.
- the annular step 8a is defined by narrowing of the diameter passing from the first portion 15 to the second portion 25.
- the passages 4 are grooves 41 obtained in the solid body 2.
- the grooves 41 are blind apertures.
- the solid body 2 comprises a first element 21 and a second element 22 that are integrally connected and coaxial.
- the first element 21 and the second element 22 have a substantially hollow cylindrical shape.
- the second element 22 originates from the first element 21 .
- the first element 21 has an external diameter that is higher than the external diameter of the second element 22.
- the first element 21 and the second element 22 are connected by an annular step 28a that is defined by narrowing of the diameter passing from the first element 21 to the second element 22.
- the grooves 41 are obtained in the second element 22 of the solid body 2.
- the grooves 41 are obtained on an external lateral surface of the second element 22.
- the grooves 41 are equally spaced according to a circumferential development of the second element 22.
- the grooves 41 are four.
- the solid body 2 has an internal annular protrusion 10 so as to retain the sleeve 9 at one end.
- the annular protrusion 10 of the solid body 2 projects inward towards the cavity 3.
- the guiding device 1 further comprises a stop element 30 operatively active on another end of the sleeve 9 that is opposite to the end close to the protrusion 10.
- the stop element 30 is used to maintain the sleeve 9 fitted inside the cavity 3 of the solid body 2.
- the stop element 30 is inserted inside an internal annular groove 23 obtained in the second element 22.
- the stop element 30 is a seeger.
- the seeger 30 is an annular stop element with a cut 31 , that is preferably made of an elastic material.
- the seeger 30 is made of plastic, in particular PEEK.
- Number 200 identifies a homogenizing valve comprising a valve body 201 defining a through- hole having axial development with respect to the valve body 201 .
- the homogenizing valve 200 comprises a shaft 203 housed in the through-hole defined by the valve body 201 .
- the homogenizing valve 200 has a gap wherein a fluid to be homogenized is accelerated.
- the gap is defined by a passage head 202 that is integrally connected to the valve body 201 and an impact head 100 that is integrally connected to the shaft 203.
- the homogenizing valve 200 has an inlet for a fluid at high pressure and an outlet for homogenized fluid at low pressure.
- the homogenizing valve 200 comprises a guiding device 1 according to the proposed invention.
- the solid body 2 of the guiding device 1 has a recess for supporting the valve body 201 .
- valve body 201 urges on the annular step 8a, 28a of the solid body 2.
- the impact head 100 is received by the sleeve 9 of the guiding device 1 .
- the impact head 100 is actuated by a shaft 203 that is integrally connected to the impact head 100.
- the shaft 203 is located in an upper part of the homogenizing valve 200.
- the impact head 100 Under the pushing action of the shaft 203, the impact head 100 is moved downwards, that means towards the gap that receives the fluid from the inlet and delivers it to the outlet.
- the impact head 100 being fitted inside the sleeve 9 is guided towards the passage head 202.
- the guiding device 1 allows the passage of the fluid thanks to the passages 4, that are the through-holes 40 or the grooves 41 .
- the impact head 100 is made of one of the following materials: tungsten carbide, ceramic, boron nitride, silicon carbide, silicon nitride.
- the guiding device is designed to guide the impact head by embracing it, thus reducing tolerances and misalignments.
- the impact head may be actuated in a more accurate and reliable way since the guiding device acts on the impact head close to the working area, i.e., the gap of the homogenizing valve.
- the guiding device acts on the impact head close to the working area, i.e., the gap of the homogenizing valve.
- Providing a guiding device close to the working area is feasible thanks to the through- holes or grooves that allow the passage of the fluid.
- the impact head is guided by the guiding device, it can be manufactured in material such as ceramic, boron nitride, silicon carbide, which are less hard than tungsten carbide.
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA3237689A CA3237689A1 (en) | 2022-11-16 | 2023-08-24 | A guiding device for guiding an impact head and a homogenizing valve comprising said guiding device |
AU2023343802A AU2023343802A1 (en) | 2022-11-16 | 2023-08-24 | A guiding device for guiding an impact head and a homogenizing valve comprising said guiding device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102022000023643 | 2022-11-16 | ||
IT202200023643 | 2022-11-16 |
Publications (1)
Publication Number | Publication Date |
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WO2024105463A1 true WO2024105463A1 (en) | 2024-05-23 |
Family
ID=85172765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2023/058407 WO2024105463A1 (en) | 2022-11-16 | 2023-08-24 | A guiding device for guiding an impact head and a homogenizing valve comprising said guiding device |
Country Status (1)
Country | Link |
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WO (1) | WO2024105463A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1509453A (en) * | 1923-02-19 | 1924-09-23 | Trudel Francois Xavier Ovide | Homogenizer for liquids |
JPS621444A (en) * | 1985-06-27 | 1987-01-07 | Snow Brand Milk Prod Co Ltd | High pressure type homogenizer |
EP0810025A1 (en) | 1996-05-30 | 1997-12-03 | NIRO SOAVI S.p.A. | Homogenizing valve |
ITPR20090023A1 (en) * | 2009-04-01 | 2010-10-02 | Bertoli S R L | HOMOGENIZATION VALVE |
WO2020115586A1 (en) * | 2018-12-05 | 2020-06-11 | Gea Mechanical Equipment Italia S.P.A. | High-pressure homogenising valve and process for the production of nano-structured, carbon- based materials, in particular graphene and carbon nanotubes |
EP3914382A1 (en) * | 2020-04-03 | 2021-12-01 | GEA Mechanical Equipment Italia S.p.A. | Method for validating a homogenizing valve |
-
2023
- 2023-08-24 WO PCT/IB2023/058407 patent/WO2024105463A1/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1509453A (en) * | 1923-02-19 | 1924-09-23 | Trudel Francois Xavier Ovide | Homogenizer for liquids |
JPS621444A (en) * | 1985-06-27 | 1987-01-07 | Snow Brand Milk Prod Co Ltd | High pressure type homogenizer |
EP0810025A1 (en) | 1996-05-30 | 1997-12-03 | NIRO SOAVI S.p.A. | Homogenizing valve |
ITPR20090023A1 (en) * | 2009-04-01 | 2010-10-02 | Bertoli S R L | HOMOGENIZATION VALVE |
WO2020115586A1 (en) * | 2018-12-05 | 2020-06-11 | Gea Mechanical Equipment Italia S.P.A. | High-pressure homogenising valve and process for the production of nano-structured, carbon- based materials, in particular graphene and carbon nanotubes |
EP3914382A1 (en) * | 2020-04-03 | 2021-12-01 | GEA Mechanical Equipment Italia S.p.A. | Method for validating a homogenizing valve |
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